Thanks Romit.. Will fix and send the patch.
Regards Teerth > -----Original Message----- > From: Dasgupta, Romit > Sent: Wednesday, December 23, 2009 8:02 PM > To: Reddy, Teerth > Cc: [email protected] > Subject: Re: [PATCH] OMAP3: PM: Dynamic calculation of SDRC clock > stabilization delay > > > +#ifdef CONFIG_ARCH_OMAP3 > > +unsigned long (*_omap3_sram_delay)(unsigned long); > > +unsigned int measure_sram_delay(unsigned int loop) > > +{ > > + static struct omap_dm_timer *gpt; > > + unsigned long flags, diff = 0, gt_rate, mpurate; > > + unsigned int delay_sram, error_gain; > > + > > + omap_dm_timer_init(); > > + gpt = omap_dm_timer_request_specific(10); > > + if (!gpt) > > + pr_err("Could not get the gptimer\n"); > > + omap_dm_timer_set_source(gpt, OMAP_TIMER_SRC_SYS_CLK); > > + > > + gt_rate = clk_get_rate(omap_dm_timer_get_fclk(gpt)); > > + omap_dm_timer_set_load_start(gpt, 0, 0); > > + > > + local_irq_save(flags); > > + diff = _omap3_sram_delay(loop); > > + local_irq_restore(flags); > > + > > + omap_dm_timer_stop(gpt); > > + omap_dm_timer_free(gpt); > > + > > + mpurate = clk_get_rate(clk_get(NULL, "arm_fck")); > > + > > + /* calculate the sram delay */ > > + delay_sram = ((((mpurate/1000000) / (gt_rate/1000000)) * diff) / > 20000); > Can remove the 1000000 from the denominators as they cancel out. > > + > > + error_gain = ((mpurate/1000000) / (gt_rate/1000000)); > Same as before. > > + delay_sram = delay_sram + error_gain; > > + > > + return delay_sram; > > +} -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
